EP3088315A1 - Deep draw packaging machine with strip puncher - Google Patents
Deep draw packaging machine with strip puncher Download PDFInfo
- Publication number
- EP3088315A1 EP3088315A1 EP15165942.2A EP15165942A EP3088315A1 EP 3088315 A1 EP3088315 A1 EP 3088315A1 EP 15165942 A EP15165942 A EP 15165942A EP 3088315 A1 EP3088315 A1 EP 3088315A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- packaging machine
- punch
- die
- machine according
- thermoforming packaging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 44
- 238000003856 thermoforming Methods 0.000 claims abstract description 38
- 239000011888 foil Substances 0.000 claims description 18
- 238000004080 punching Methods 0.000 claims description 16
- 239000002131 composite material Substances 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 description 18
- 230000032258 transport Effects 0.000 description 12
- 238000007789 sealing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
- B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
- B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
- B65B61/065—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting by punching out
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/27—Means for performing other operations combined with cutting
- B26D7/32—Means for performing other operations combined with cutting for conveying or stacking cut product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/02—Perforating by punching, e.g. with relatively-reciprocating punch and bed
- B26F1/14—Punching tools; Punching dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
- B65B65/003—Packaging lines, e.g. general layout
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
- B65B65/02—Driving gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
- B65B9/02—Enclosing successive articles, or quantities of material between opposed webs
- B65B9/04—Enclosing successive articles, or quantities of material between opposed webs one or both webs being formed with pockets for the reception of the articles, or of the quantities of material
Definitions
- the punching knife Since normally the space for a means for collecting within the machine frame or for transporting out of the machine frame is not sufficiently available, the punching knife usually punches from below coming down the strip cuts up out of the film. These are pushed further upwards in a receptacle after each cut and can then be removed collected. In high-performance machines, the receptacles are very high, so they do not have to empty constantly. The strip cuts are pushed over a paragraph, which is located above a film transport plane, and on which the last cut strip cut partially rests with its edge. This prevents the strip strips stacked above from falling down into the cross cutting station or onto the packages to be cut. In the latter case, it would also interfere with the thermoforming packaging machine and downtime.
- the EP 2 447 171 A1 discloses a solution for the safe disposal of cutting waste, which is discharged upward, namely above the film plane.
- the object of the present invention is to provide a thermoforming packaging machine with an improved strip punch.
- thermoforming packaging machine with the features of claim 1.
- Advantageous developments of the invention are specified in the subclaims.
- the lifting drive comprises an electric motor, preferably a servomotor, for example additionally with a brake.
- an electric motor preferably a servomotor, for example additionally with a brake.
- a foil punch is in an open position in the idle state, and in the event of a falling pressure in the pneumatic cylinder supply lines, there is a risk of injury to the operator due to unexpected movement of an upper tool of the foil punch.
- An electric motor can drive a self-locking lifting spindle or have a brake, so that no danger to the operating or maintenance personnel emanates in the rest position of the foil punch.
- the control of the thermoforming packing mesh may operate the electric motor with a defined torque while the brake is closed, and check whether an inadmissible movement is taking place.
- the stamp preferably comprises a punching knife.
- the die preferably has a recess into which the punching knife can dip.
- the recess is preferably produced by means of wire EDM and / or by means of grinding.
- the punch and the punching knife are each made of several parts, so that larger dimensions of the punch and punching knife are made possible and an adjustment of the individual parts to each other.
- the die preferably has several troughs so as not to collide with the containers of the lower foil, since the die has webs for stabilization aligned in the working direction of the thermoforming packaging machine.
- the film punch is preferably configured to use the punch and die to strip a film strip from a film composite and convey it down through the die so as not to lift up collection of film strips and, for example, to accumulate or stack in containers.
- the punch for the punching process vertically down and the die are carried out vertically movable upward.
- the foil punch is preferably configured to carry out the movement of the punch and the die as much as possible at the same time in order to minimize the cycle time of the foil punch and to simplify the construction with only one electric motor.
- a container is provided below the die or the foil punch to receive the film strips.
- the container may have a fill level monitoring, which is connected, for example, with the control of thermoforming packaging machine to the operator to display the information about a due or even pending change or emptying of the container.
- the sealing station 3 has a closable chamber 17 in which the atmosphere in the container 14 can be replaced with a replacement gas or exchange gas mixture before sealing, for example, by gas purging.
- the cross-cutting station 4 is designed as a foil punch or concretely as a strip punch, which cuts through the lower film 8 and the upper film 10 in a direction transverse to the working direction R between adjacent containers 14.
- the cross-cutting station 4 operates such that the lower film 8 is not separated over the entire width, but at least in an edge region and between two adjacent containers 14 is not severed. This allows a controlled onward transport of the container 14 by the feed device.
- the longitudinal cutting station 5 is formed in the illustrated embodiment as a knife assembly, with which the lower film 8 and the upper film 10 between adjacent Containers 14 and at the lateral edge of the lower film 8 are severed, so that behind the longitudinal cutting station 5 individualized packages 21 are present.
- a movable container 33 is provided for receiving punching waste.
- the packaging machine 1 also has a controller 18. It has the task of controlling and monitoring the processes taking place in the packaging machine 1.
- a display device 19 with operating elements 20 serves to visualize or influence the process sequences in the thermoforming packaging machine 1 for or by an operator.
- the lower film 8 is withdrawn from the feed roller 7 and transported by the feed device into the forming station 2.
- containers 14 are formed by deep drawing in the lower film 8.
- the containers 14 are transported along with the surrounding area of the lower film 8 in a main working cycle to the insertion path 15 in which they are filled with product 16.
- the filled containers 14 are transported along with the surrounding area of the lower film 8 in the main working cycle by the feed device in the sealing station 3.
- the top film 10 is transported on to the lower film 8 with the advancing movement of the lower film 8 after a sealing operation.
- the upper film 10 is withdrawn from the material storage 9.
- sealed packages 21 are formed.
- FIG. 2 shows the cross-cutting station 4 in the form of a film punch, by means of an electric motor Hubantriebs 22, preferably a servo drive or servomotor, a punch 23 down against the lower film 8 and the upper film 10, which together represent a composite film, while a film strip 32 from the In this case, the punch 23 cooperates with a die 24, which is simultaneously moved by means of the lifting drive 22 counter to the punch 23 from below against the lower film 8 and the upper film 10.
- the lifting drive 22 is configured, via a first lifting mechanism 25a, which is realized here in the form of a bent push rod 26, a plate 27 with the attached thereto Stamp 23 to move down.
- the motor 22 is mounted on a bearing plate 28. At the same time causes the motor 22 by its drive power, a relative movement of the bearing plate 28 relative to a frame 29 of the cross cutting station 4 upwards, wherein the frame 29 is stationarily arranged on the machine frame 6.
- a lifting plate 31 with the die 24 mounted thereon is rigidly connected to the bearing plate 28, so that the movement of the die 24 corresponds to the movement of the bearing plate 28.
- the bearing plate 28, the at least two guide rods 30 and the lifting plate 31 together form a second lifting mechanism 25b, by means of which the drive movement of the lifting drive 22 is transferred into a lifting movement of the die 24.
- the lifting drive 22 provides for a common mutual movement of the punch 23 and the die 24 for removing the film strip 32 and again for a moving apart of the punch 23 and the die 24 to allow a next slide preference.
- the film strip 32 After the separation of the film strip 32, it is pressed down by the die 23 through the die 24 and can fall down into the mobile container 33 provided with wheels 33a under the cross-cutting device 4.
- the container 33 is sensed by the controller 18 sensory whether this is in its predefined working position under the cross-cutting device 4, as he also for security reasons intervention of an operator in the cross cutter 4 from below through the machine frame 6 through during operation of the thermoforming packaging machine 1 should prevent.
- thermoforming packaging machine 1 transports the film strips laterally to the working direction R from the thermoforming packaging machine 1 to the outside and a disposal device supplies.
- Fig. 3 shows the punch 23 and the die 24.
- the die 24 has a recess 35 which is congruent with the contour of a punch blade 34 of the punch 23.
- the separated from the film composite film strip 32 can fall through the recess 35 of the die 24 down or pressed by the punching blade 34 down into the recess 35.
- the punch 23 and the punching blade 34 are formed in several parts from a plurality of interconnected parts A, B and C.
- Fig. 4 shows the die 24 in a cross-sectional view transverse to the working direction R of the thermoforming packaging machine 1 in the center of the die 24.
- the recess 35 has in the upper part of a flat punching surface 37, which is parallel to the direction of movement of the punch 23 and die 24.
- the punching surface 37 has a width Z of at least 3 mm. Below this punching surface 37, the recess on an exemption 38, to facilitate falling of foil strips 32.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Die Erfindung bezieht sich auf eine Tiefziehverpackungsmaschine (1) umfassend eine Folienstanze (4) mit einem Hubantrieb (22) für eine Matrize (24) und einen Stempel (23), wobei die Matrize (24) und der Stempel (23) vom gemeinsamen Hubantrieb (22) orthogonal zu einer Folientransportebene (E) zueinander bewegbar sind. Die Tiefziehverpackungsmaschine (1) zeichnet sich dadurch aus, dass der Hubantrieb (22) oberhalb der Folientransportebene (E) angeordnet ist.The invention relates to a thermoforming packaging machine (1) comprising a film punch (4) with a lifting drive (22) for a die (24) and a punch (23), wherein the die (24) and the punch (23) from the common lifting drive (22) orthogonal to a film transport plane (E) are mutually movable. The thermoforming packaging machine (1) is characterized in that the lifting drive (22) is arranged above the film transport plane (E).
Description
Die Erfindung bezieht sich auf eine Tiefziehverpackungsmaschine gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a thermoforming packaging machine according to the preamble of claim 1.
In Tiefziehverpackungsmaschinen wird üblicherweise in einer Formstation ein Behälter bzw.eine Mulde in eine Unterfolie geformt, darin ein Produkt eingelegt und die Mulde in einer Siegelstation mit einer Oberfolie unter Vakuum und/oder modifizierter Atmosphäre luftdicht versiegelt. Die so hergestellten Packungen hängen als Verbund über die Unterfolie zusammen und werden durch beidseitig angebrachte Klammerketten durch die Tiefziehverpackungsmaschine transportiert. Zum Vereinzeln der Verpackungen aus dem Verbund der Unter- und der Oberfolie kann eine Kombination einer Querschneidestation und einer nachfolgenden Längsschneidestation vorgesehen sein. In der Querschneidestation wird der Verbund der Unter- und der Oberfolie quer zur Transportrichtung geschnitten oder es werden, falls Radien an den Rändern der Verpackungen notwendig sind, Streifenschnitte ausgestanzt.In thermoforming packaging machines, a container or depression is usually formed into a lower film in a forming station, a product is inserted therein and the cavity is airtightly sealed in a sealing station with a top film under vacuum and / or modified atmosphere. The packs produced in this way are bound together as a composite over the lower film and are transported through double-sided staple chains through the thermoforming packaging machine. For separating the packages from the composite of the lower and the upper film, a combination of a cross-cutting station and a subsequent longitudinal cutting station can be provided. In the cross-cutting station, the composite of the lower and the upper film is cut transversely to the transport direction or, if radii are necessary at the edges of the packaging, strip cuts are punched out.
Da normalerweise der Platz für eine Einrichtung zum Sammeln innerhalb des Maschinengestells oder zum Heraustransportieren aus dem Maschinengestell nicht ausreichend vorhanden ist, stanzt das Stanzmesser üblicherweise von unten kommend die Streifenschnitte nach oben aus der Folie heraus. Diese werden in einem Aufnahmebehälter nach jedem Schnitt weiter nach oben geschoben und können dann gesammelt entnommen werden. Bei Hochleistungsmaschinen sind die Aufnahmebehälter sehr hoch, um sie nicht laufend leeren zu müssen. Dabei werden die Streifenschnitte über einen Absatz geschoben, der sich oberhalb einer Folientransportebene befindet, und auf dem der zuletzt geschnittene Streifenschnitt teilweise mit seinem Rand aufliegt. So wird verhindert, dass die darüber gestapelten Streifenschnitte nach unten in die Querschneidestation bzw. auf die zu schneidenden Verpackungen fallen. In letzterem Fall würde es auch zu Störungen in der Tiefziehverpackungsmaschine und Stillstandszeiten kommen.Since normally the space for a means for collecting within the machine frame or for transporting out of the machine frame is not sufficiently available, the punching knife usually punches from below coming down the strip cuts up out of the film. These are pushed further upwards in a receptacle after each cut and can then be removed collected. In high-performance machines, the receptacles are very high, so they do not have to empty constantly. The strip cuts are pushed over a paragraph, which is located above a film transport plane, and on which the last cut strip cut partially rests with its edge. This prevents the strip strips stacked above from falling down into the cross cutting station or onto the packages to be cut. In the latter case, it would also interfere with the thermoforming packaging machine and downtime.
Vor allem bei dünneren bzw. nicht biegesteifen Streifenschnitten ist das Risiko groß, dass das Gewicht der gestapelten Streifenschnitte nicht durch den untersten aufliegenden Streifenschnitt gehalten werden kann.Especially with thinner or non-rigid strip cuts the risk is great that the weight of the stacked strip cuts can not be held by the lowest resting strip cut.
Die
Aufgabe der vorliegenden Erfindung ist es, eine Tiefziehverpackungsmaschine mit einer verbesserten Streifenstanze bereit zu stellen.The object of the present invention is to provide a thermoforming packaging machine with an improved strip punch.
Diese Aufgabe wird gelöst durch eine Tiefziehverpackungsmaschine mit den Merkmalen des Anspruchs 1. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a thermoforming packaging machine with the features of claim 1. Advantageous developments of the invention are specified in the subclaims.
Die erfindungsgemäße Tiefziehverpackungsmaschine umfasst eine Folienstanze mit einem gemeinsamen Hubantrieb für eine Matrize und einen Stempel, wobei die Matrize und der Stempel vom gemeinsamen Hubantrieb orthogonal zu einer Folientransportebene zueinander bewegbar sind. Eine erste Hubmechanik überträgt die Antriebsbewegung des Hubantriebs auf den Stempel, während eine zweite Hubmechanik die Antriebsbewegung des Hubantriebs auf eine Bewegung der Matrize überträgt. Die dabei von dem Stempel und der Matrize ausgeführten Hubbewegungen sind vorzugsweise stets gegenläufig zueinander. Die erfindungsgemäße Tiefziehverpackungsmaschine zeichnet sich dadurch aus, dass der Hubantrieb oberhalb der Folientransportebene angeordnet ist. Somit können ausgetrennte Folienstreifen direkt in einen Behälter oder auf ein Abfuhrband fallen, ohne dass es dabei zu Verschmutzung oder negativer Beeinträchtigung des Hubantriebs kommt.The thermoforming packaging machine according to the invention comprises a film punch with a common lifting drive for a die and a punch, wherein the die and the punch from the common lifting drive orthogonal to a film transport plane to each other are movable. A first lifting mechanism transmits the drive movement of the lifting drive to the punch, while a second lifting mechanism transmits the drive movement of the lifting drive to a movement of the die. The lifting movements performed by the punch and the die are preferably always in opposite directions. The thermoforming packaging machine according to the invention is characterized in that the lifting drive is arranged above the film transport plane. Thus, separated film strips can fall directly into a container or on a discharge belt, without causing contamination or negative impairment of the linear actuator.
In einer besonders vorteilhaften Ausführung umfasst der Hubantrieb einen Elektromotor, vorzugsweise einen Servomotor, beispielsweise zusätzlich mit einer Bremse. Bei einem herkömmlichen Hubantrieb mit Pneumatikzylinder ist eine Folienstanze im Ruhezustand in einer offenen Stellung und im Falle eines abfallenden Druckes in den Versorgungsleitungen des Pneumatikzylinders besteht die Gefahr von Verletzungen für den Bediener durch eine unerwartete Bewegung eines oberen Werkzeugs der Folienstanze nach unten. Ein Elektromotor hingegen kann eine selbsthemmende Hubspindel antreiben oder eine Bremse aufweisen, so dass in der Ruhestellung der Folienstanze keine Gefahr für das Bedien- oder Wartungspersonal ausgeht. Um die Funktion der Bremse zu überwachen oder zu testen, kann die Steuerung der Tiefziehverpackungsmasche den Elektromotor mit einem definierten Drehmoment bei geschlossener Bremse betreiben und prüfen, ob eine nicht zulässige Bewegung stattfindet.In a particularly advantageous embodiment, the lifting drive comprises an electric motor, preferably a servomotor, for example additionally with a brake. In a conventional linear actuator with pneumatic cylinder, a foil punch is in an open position in the idle state, and in the event of a falling pressure in the pneumatic cylinder supply lines, there is a risk of injury to the operator due to unexpected movement of an upper tool of the foil punch. An electric motor, however, can drive a self-locking lifting spindle or have a brake, so that no danger to the operating or maintenance personnel emanates in the rest position of the foil punch. In order to monitor or test the function of the brake, the control of the thermoforming packing mesh may operate the electric motor with a defined torque while the brake is closed, and check whether an inadmissible movement is taking place.
Zweckmäßig ist es, wenn sich die erste Hubmechanik vollständig oberhalb der Folientransportebene befindet, weil die Folienstanze auf diese Weise besonders einfach wird. Die zweite Hubmechanik hingegen kann über Führungsstangen verfügen, die sich seitlich außerhalb der in der Folienstanze transportierten Folie befinden und mittels derer eine Antriebsbewegung des Hubantriebs auf die unterhalb der Folientransportebene befindliche Matrize übertragbar ist.It is expedient if the first lifting mechanism is completely above the film transport plane, because the film punch is particularly simple in this way. The second lifting mechanism, however, can have guide rods which are located laterally outside the foil transported in the foil lance and by means of which a drive movement of the lifting drive can be transferred to the die located below the foil transport plane.
Die Folienstanze kann einen Rahmen aufweisen, der stationär an einem Maschinengestell der Tiefziehverpackungsmaschine angeordnet ist. Als Komponente der zweiten Hubmechanik kann eine Lagerplatte vorhanden sein, die sich im Betrieb der Folienstanze relativ gegenüber dem Rahmen der Folienstanze auf und ab bewegt und an deren Bewegung die Hubbewegung der unterhalb der Folienebene befindlichen Matrize gekoppelt ist. In einer ersten Variante ist der Hubantrieb starr am Rahmen befestigt, sodass sich die Lagerplatte relativ zum Rahmen bewegt. In einer zweiten Ausführungsvariante hingegen ist der Motor an der Lagerplatte befestigt, sodass er sich beim Betrieb der Folienstanze gemeinsam mit der Lagerplatte relativ zum Rahmen der Folienstanze alternierend nach oben und unten bewegt.The film punch may have a frame which is stationarily arranged on a machine frame of the thermoforming packaging machine. As a component of the second lifting mechanism, a bearing plate may be present, which moves relative to the frame of the foil punch up and down during operation of the foil lance and the movement of the lifting movement of the located below the film plane die is coupled to the movement. In a first variant of the lifting drive is rigidly attached to the frame, so that the bearing plate moves relative to the frame. In a second embodiment, however, the motor is attached to the bearing plate, so that it moves alternately up and down during operation of the foil punch together with the bearing plate relative to the frame of the foil punch.
Der Stempel umfasst bevorzugt ein Stanzmesser.The stamp preferably comprises a punching knife.
Die Matrize weist vorzugsweise eine Aussparung auf, in die das Stanzmesser eintauchen kann.The die preferably has a recess into which the punching knife can dip.
Die Aussparung ist bevorzugt mittels Drahterodieren und/oder mittels Schleifen hergestellt.The recess is preferably produced by means of wire EDM and / or by means of grinding.
Vorzugsweise sind der Stempel und das Stanzmesser jeweils mehrteilig ausgeführt, so dass größere Abmessungen von Stempel und Stanzmesser ermöglicht werden und eine Einstellmöglichkeit der einzelnen Teile zueinander ermöglicht ist.Preferably, the punch and the punching knife are each made of several parts, so that larger dimensions of the punch and punching knife are made possible and an adjustment of the individual parts to each other.
Die Matrize weist bevorzugt mehrere Mulden auf, um nicht mit den Behältern der Unterfolie zu kollidieren, da die Matrize Stege zur Stabilisierung ausgerichtet in Arbeitsrichtung der Tiefziehverpackungsmaschine aufweist.The die preferably has several troughs so as not to collide with the containers of the lower foil, since the die has webs for stabilization aligned in the working direction of the thermoforming packaging machine.
Dabei weisen die Mulden vorzugsweise in Vertikalrichtung eine Höhe von bis zu 60 mm und/oder in Horizontalrichtung eine Tiefe von 30 mm bis 40 mm auf, um auch für die Bearbeitung von Behältern mit großem Tiefzug geeignet zu sein.The troughs preferably have a height of up to 60 mm in the vertical direction and / or a depth of 30 mm to 40 mm in the horizontal direction, in order to be suitable also for the processing of containers with large thermoforming.
Die Folienstanze ist bevorzugt dazu konfiguriert, mittels des Stempels und der Matrize einen Folienstreifen aus einem Folienverbund auszutrennen und nach unten durch die Matrize hindurch zu fördern, um keine Ansammlung von Folienstreifen nach oben anzuheben und beispielsweise in Behältern ansammeln bzw. stapeln zu müssen.The film punch is preferably configured to use the punch and die to strip a film strip from a film composite and convey it down through the die so as not to lift up collection of film strips and, for example, to accumulate or stack in containers.
Vorzugsweise sind der Stempel für den Stanzvorgang vertikal nach unten und die Matrize vertikal nach oben bewegbar ausgeführt.Preferably, the punch for the punching process vertically down and the die are carried out vertically movable upward.
Die Folienstanze ist bevorzugt dazu konfiguriert, die Bewegung des Stempels und der Matrize weitestgehend zeitgleich auszuführen, um die Zykluszeit der Folienstanze minimal zu halten und um die Konstruktion mit nur einem Elektromotor zu vereinfachen.The foil punch is preferably configured to carry out the movement of the punch and the die as much as possible at the same time in order to minimize the cycle time of the foil punch and to simplify the construction with only one electric motor.
In einer vorteilhaften Ausführung ist ein Behälter unterhalb der Matrize bzw. der Folienstanze vorgesehen, um die Folienstreifen aufzunehmen. Dabei kann der Behälter eine Füllstandsüberwachung aufweisen, die beispielsweise mit der Steuerung der Tiefziehverpackungsmaschine verbunden ist, um dem Bediener die Information über einen fälligen oder auch demnächst anstehenden Wechsel bzw. Leerung des Behälters anzuzeigen.In an advantageous embodiment, a container is provided below the die or the foil punch to receive the film strips. In this case, the container may have a fill level monitoring, which is connected, for example, with the control of thermoforming packaging machine to the operator to display the information about a due or even pending change or emptying of the container.
Im Folgenden wird ein vorteilhaftes Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher erläutert. Im Einzelnen zeigen:
- Figur 1
- eine schematische Ansicht einer erfindungsgemäßen Tiefziehverpackungsmaschine,
- Figur 2
- eine schematische Ansicht in Arbeitsrichtung einer Querschneidestation,
Figur 3- eine schematische Ansicht eines Stempels und einer Matrize und
Figur 4- eine Schnittansicht der Matrize.
- FIG. 1
- a schematic view of a thermoforming packaging machine according to the invention,
- FIG. 2
- a schematic view in the direction of a cross-cutting station,
- FIG. 3
- a schematic view of a punch and a die and
- FIG. 4
- a sectional view of the die.
Einander entsprechende Komponenten sind in den Figuren durchgängig mit gleichem Bezugszeichen versehen.Corresponding components are consistently provided in the figures with the same reference numerals.
In der dargestellten Ausführungsform ist die Formstation 2 als eine Tiefziehstation ausgebildet, in der in der Unterfolie 8 durch Tiefziehen Behälter 14 geformt werden. Dabei kann die Formstation 2 derart ausgebildet sein, dass in der Richtung senkrecht zur Arbeitsrichtung R mehrere Behälter 14 nebeneinander gebildet werden. In Arbeitsrichtung R hinter der Formstation 2 ist eine Einlegestrecke 15 vorgesehen, in der die in der Unterfolie 8 geformten Behälter 14 mit Produkten 16 befüllt werden.In the illustrated embodiment, the forming station 2 is formed as a thermoforming station in which
Die Siegelstation 3 verfügt über eine verschließbare Kammer 17, in der die Atmosphäre in dem Behälter 14 vor dem Versiegeln zum Beispiel durch Gasspülen mit einem Austauschgas oder mit einem Austausch-Gasgemisch ersetzt werden kann.The sealing
Die Querschneidestation 4 ist als Folienstanze bzw. konkret als Streifenstanze ausgebildet, die die Unterfolie 8 und die Oberfolie 10 in einer Richtung quer zur Arbeitsrichtung R zwischen benachbarten Behältern 14 durchtrennt. Dabei arbeitet die Querschneidestation 4 derart, dass die Unterfolie 8 nicht über die gesamte Breite aufgetrennt wird, sondern zumindest in einem Randbereich und zwischen zwei benachbarten Behältern 14 nicht durchtrennt wird. Dies ermöglicht einen kontrollierten Weitertransport der Behälter 14 durch die Vorschubeinrichtung.The
Die Längsschneidestation 5 ist in der dargestellten Ausführungsform als eine Messeranordnung ausgebildet, mit der die Unterfolie 8 und die Oberfolie 10 zwischen benachbarten Behältern 14 und am seitlichen Rand der Unterfolie 8 durchtrennt werden, so dass hinter der Längsschneidestation 5 vereinzelte Verpackungen 21 vorliegen. Unter der Querschneideeinrichtung 4 ist ein fahrbarer Behälter 33 zur Aufnahme von Stanzabfällen vorgesehen.The longitudinal cutting station 5 is formed in the illustrated embodiment as a knife assembly, with which the
Die Verpackungsmaschine 1 verfügt ferner über eine Steuerung 18. Sie hat die Aufgabe, die in der Verpackungsmaschine 1 ablaufenden Prozesse zu steuern und zu überwachen. Eine Anzeigevorrichtung 19 mit Bedienelementen 20 dient zum Visualisieren bzw. Beeinflussen der Prozessabläufe in der Tiefziehverpackungsmaschine 1 für bzw. durch einen Bediener.The packaging machine 1 also has a
Die generelle Arbeitsweise der Verpackungsmaschine 1 wird im Folgenden kurz dargestellt.The general mode of operation of the packaging machine 1 will be briefly described below.
Die Unterfolie 8 wird von der Zufuhrrolle 7 abgezogen und durch die Vorschubeinrichtung in die Formstation 2 transportiert. In der Formstation 2 werden durch Tiefziehen Behälter 14 in die Unterfolie 8 gebildet. Die Behälter 14 werden zusammen mit dem umgebenden Bereich der Unterfolie 8 in einem Hauptarbeitstakt zu der Einlegestrecke 15 weitertransportiert, in der sie mit Produkt 16 befüllt werden.The
Anschließend werden die befüllten Behälter 14 zusammen mit dem sie umgebenden Bereich der Unterfolie 8 in dem Hauptarbeitstakt durch die Vorschubeinrichtung in die Siegelstation 3 weitertransportiert. Die Oberfolie 10 wird nach einem Ansiegelvorgang an die Unterfolie 8 mit der Vorschubbewegung der Unterfolie 8 weitertransportiert. Dabei wird die Oberfolie 10 von dem Materialspeicher 9 abgezogen. Durch das Ansiegeln der Oberfolie 10 an die Behälter 14 entstehen verschlossene Verpackungen 21.Subsequently, the filled
Über wenigstens zwei Führungsstangen 30, die in der Zeichnung an der rechten und linken Seite angeordnet sind, ist eine Hubplatte 31 mit der darauf angebrachten Matrize 24 starr mit der Lagerplatte 28 verbunden, so dass die Bewegung der Matrize 24 der Bewegung der Lagerplatte 28 entspricht. Die Lagerplatte 28, die wenigstens zwei Führungsstangen 30 und die Hubplatte 31 bilden gemeinsam eine zweite Hubmechanik 25b, mittels derer die Antriebsbewegung des Hubantriebs 22 in eine Hubbewegung der Matrize 24 übertragen wird. Somit sorgt der Hubantrieb 22 für ein gemeinsames zueinander Zubewegen des Stempels 23 und der Matrize 24 zum Austrennen des Folienstreifens 32 bzw. auch wieder für ein Auseinanderfahren des Stempels 23 und der Matrize 24, um einen nächsten Folienvorzug zu ermöglichen.Via at least two
Nach dem Heraustrennen des Folienstreifens 32 wird dieser vom Stempel 23 durch die Matrize 24 hindurch nach unten gedrückt und kann nach unten in den fahrbaren, mit Rädern 33a versehenen Behälter 33 unter der Querschneideinrichtung 4 fallen. Der Behälter 33 wird von der Steuerung 18 sensorisch abgefragt, ob dieser sich in seiner vordefinierten Arbeitsstellung unter der Querschneideinrichtung 4 befindet, da er auch aus Sicherheitsgründen ein Eingreifen eines Bedieners in die Querschneideinrichtung 4 von unten durch das Maschinengestell 6 hindurch während des laufenden Betriebs der Tiefziehverpackungsmaschine 1 verhindern soll.After the separation of the
Denkbar ist auch eine alternative Ausführung ohne einen solchen Behälter 33 und stattdessen mit einem Transportband, das die Folienstreifen seitlich zur Arbeitsrichtung R aus der Tiefziehverpackungsmaschine 1 nach außen transportiert und einer Entsorgungseinrichtung zuführt.Also conceivable is an alternative embodiment without such a
Eine Folientransportebene E wird durch den Folienverbund der Unterfolie 8 und der Oberfolie 10 sowie durch die Ausrichtung in Arbeitsrichtung R definiert. Sowohl der Hubantrieb 22 als auch die erste Hubmechanik 25a befinden sich vollständig oberhalb der Folientransportebene E.A film transport plane E is defined by the film composite of the
Die Matrize 24 ist einstückig und aus Edelstahl oder einem anderen gehärteten Stahl ausgeführt und die Aussparung 35 beispielsweise mittels Drahterodieren hergestellt. Die Matrize 24 weist vier Mulden 36 auf, die als Freistellung der Matrize 24 für die Verpackungen 21 bzw. die Behälter 14 dienen. Eine Höhe H der Mulden 36 ist bis zu 60 mm vorgesehen und eine Tiefe T in Horizontalrichtung von 30 bis 40 mm, um der Matrize 24 eine hohe Stabilität zu verleiten. Die Aussparung 35 weist im Bereich der geringsten Breite eine Breite B von 5 bis 10 mm auf. Es ist ein Schneidspalt zwischen dem Stanzmesser 34 des Stempels 23 und der Aussparung 35 der Matrize 24 von vorzugsweise 3 bis 5 µm vorgesehen.The
Claims (15)
Priority Applications (3)
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ES15165942T ES2664850T5 (en) | 2015-04-30 | 2015-04-30 | Deep drawing packaging machine with strip die-cutter |
EP15165942.2A EP3088315B2 (en) | 2015-04-30 | 2015-04-30 | Deep draw packaging machine with strip puncher |
US15/140,124 US10472112B2 (en) | 2015-04-30 | 2016-04-27 | Thermoform packaging machine with strip punch unit |
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EP15165942.2A EP3088315B2 (en) | 2015-04-30 | 2015-04-30 | Deep draw packaging machine with strip puncher |
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EP3088315A1 true EP3088315A1 (en) | 2016-11-02 |
EP3088315B1 EP3088315B1 (en) | 2018-01-10 |
EP3088315B2 EP3088315B2 (en) | 2022-11-02 |
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EP15165942.2A Active EP3088315B2 (en) | 2015-04-30 | 2015-04-30 | Deep draw packaging machine with strip puncher |
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US (1) | US10472112B2 (en) |
EP (1) | EP3088315B2 (en) |
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DE102022104218A1 (en) | 2022-02-23 | 2023-08-24 | Multivac Sepp Haggenmüller Se & Co. Kg | Thermoforming packaging machine with cross cutting station |
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CN106956825B (en) * | 2017-05-10 | 2022-11-04 | 瑞安市华思机械有限公司 | Blanking mechanism of packaging machine |
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Also Published As
Publication number | Publication date |
---|---|
US20160318643A1 (en) | 2016-11-03 |
EP3088315B1 (en) | 2018-01-10 |
ES2664850T3 (en) | 2018-04-23 |
US10472112B2 (en) | 2019-11-12 |
ES2664850T5 (en) | 2023-02-20 |
EP3088315B2 (en) | 2022-11-02 |
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